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Bo1 Bourne Creek Eastern Bank Phys/Chem

Active Physico-Chemical 24-05-2016 - 11-02-2025

Bourne Creek

78 results found (Displaying 1 - 25)
Date Status Details
11 Feb 2025 Approved Notes:

Algal bloom would explain very high pH and turbidity readings. Turbidity >100NTU
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 100.0 9.2 20.60 18.90 6.81 84.7 30.31
0.5m 100.0 9.2 20.20 19.20 2.88 3.6 30.79
23 Jan 2025 Approved Notes:

Algae most likely the reason for elevated ph and turbidity levels
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 87.1 8.7 19.90 16.00 5.00 60.6 26.13
0.7m 87.1 8.7 19.40 16.70 2.72 32.8 27.17
13 Dec 2024 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 21.6 8.0 20.10 12.80 10.19 121.4 21.31
0.5m 21.6 8.0 20.10 12.80 9.82 116.2 21.29
9 Dec 2024 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 12.5 7.7 18.80 12.20 3.11 35.5 20.34
0.4m 12.5 7.4 18.90 12.30 3.07 35.4 20.42
2 Dec 2024 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.1 7.6 25.20 11.90 4.94 63.6 20.11
0.5m 9.1 7.5 24.50 12.00 4.92 64.7 19.11
25 Sep 2024 Approved Notes:

Before artificial opening

Water temperature probe working but did not store on the meter so no water temp measurements but salinity/EC measurements should still be accurate
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 44.0 7.3 0.00 12.70 3.16 34.1 21.14
1.0m 44.0 7.5 0.00 30.70 3.07 36.1 47.06
23 Sep 2024 Approved Notes:

Water temperature probe working but did not store on the meter so no water temp measurements but salinity/EC measurements should still be accurate
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 1.7 7.4 0.00 20.40 5.02 57.6 32.55
1.0m 1.7 7.8 0.00 30.90 5.03 58.3 47.42
20 Sep 2024 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 1.0 7.6 13.50 20.00 7.57 82.8 31.90
1.0m 1.0 7.7 17.20 32.00 1.15 14.5 47.58
16 Sep 2024 Approved Notes:

Lots of seaweed washed into the estuary. DO at 0.8m is 2.25mg/L,
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 1.0 7.5 11.80 20.20 7.05 72.8 32.36
1.0m 1.0 7.3 16.30 32.50 0.60 7.3 49.53
9 Sep 2024 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 27.0 7.4 13.30 20.70 6.70 72.6 33.02
0.9m 27.0 7.3 14.40 32.80 1.64 19.6 50.04
3 Sep 2024 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 36.7 7.3 9.90 28.50 7.06 73.8 44.24
1.0m 36.7 8.0 10.70 33.10 6.45 70.5 50.63
30 Aug 2024 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 8.2 7.8 15.40 28.40 7.46 90.4 43.89
1.0m 8.2 7.7 13.60 35.40 2.56 31.3 53.61
8 Aug 2024 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 45.8 7.8 11.30 2.90 7.54 69.7 5.27
0.7m 45.8 7.1 11.40 27.40 1.24 13.4 42.68
30 Apr 2024 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.4 8.0 12.80 3.90 7.92 75.4 7.03
0.7m 9.4 8.0 13.90 17.60 1.82 19.3 28.38
27 Mar 2024 Approved Notes:

Lots of algae in the water which could explain elevated DO levels.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 17.7 19.60 27.70 9.38 119.0 42.93
0.3m 17.7 19.60 27.90 9.39 119.3 43.21
8 Feb 2024 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 7.4 8.2 20.00 19.40 4.16 50.6 31.06
0.5m 7.4 8.2 20.30 20.40 4.27 52.6 32.59
16 Jan 2024 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 14.3 21.90 2.30 5.78 66.8 4.38
0.5m 14.3 21.80 2.40 4.87 56.2 4.53
18 Dec 2023 Approved Notes:

pH giving unusually high readings, needs to be recalibrated
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 8.7 20.90 7.50 7.59 89.1 12.97
0.5m 8.7 22.40 12.00 6.49 80.4 20.05
16 Nov 2023 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 10.4 7.6 17.80 16.00 5.93 68.5 26.01
0.6m 10.4 6.8 18.70 33.20 0.33 4.3 50.51
31 Aug 2023 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 64.0 7.8 11.40 2.30 7.18 66.5 4.27
0.5m 64.0 7.2 13.90 19.10 0.47 5.1 30.61
11 Jul 2023 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 13.7 7.5 12.10 15.70 8.90 90.4 25.58
0.7m 13.7 8.1 13.10 36.30 5.69 67.1 5.69
14 Jun 2023 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 17.1 7.1 10.80 13.80 6.36 62.8 22.72
1.0m 17.1 7.1 14.20 35.30 0.65 7.9 53.44
30 May 2023 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 112.0 7.0 14.00 2.70 6.34 62.4 4.97
0.7m 112.0 6.7 14.40 33.10 0.69 8.2 50.37
1 May 2023 Approved Notes:

Depth of oxygenated layer approx. 0.7m
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 45.8 7.7 14.70 14.90 10.06 108.5 24.40
1.0m 45.8 7.3 17.20 22.70 1.29 15.4 35.87
19 Apr 2023 Approved Notes:

water column is deeper but could not access normal sampling site due to inundation. Algae most like causing high DO values at top of water column
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 46.3 8.3 16.80 17.30 10.69 121.4 28.05
0.7m 46.3 7.8 16.90 25.10 3.79 45.2 39.19
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